/// <summary>
/// Processes the node.
/// </summary>
/// <param name="sourceListItem">The source list item.</param>
/// <param name="item">The item.</param>
/// <remarks>
/// Pass the ith item of the IList along with the SourceListSet. Use NodeReflectionStrategy.GetItemAt() function for better usage.
/// </remarks>
public void AddNode(SourceListSetEntry sourceListItem, object item)
{
if (sourceListItem.nodeInfoCollection.Find(delegate(NodeInfo nInfo)
{
return(item.Equals(nInfo.ObjectInstance));
}) == null)
{
NodeClassInfo nodeClassInfo = NodeReflectionStrategy.GetNodeClassInfo(item);
Node node = GenerateNode(item, nodeClassInfo);
if (node != null)
{
//Add the node to the diagram model.
AddToDiagramModel((Node)node);
//Add to NodeInfoCollection
sourceListItem.nodeInfoCollection.Add(new NodeInfo(nodeClassInfo.ClassType, (Node)node, item));
if (_diagramEngine.IsNodeAddedEventListening)
{
//Raise the event. We can customize the look and feel of the nodes in the event listener code.
_diagramEngine.RaiseNodeAddedEvent(new NodeAddedEventArgs(sourceListItem.SourceName, (Node)node));
}
foreach (NodeRelationDescriptor nodeRelation in this._diagramEngine.IterateNodeRelationOfSourceListSetItem(sourceListItem))
{
//Provide ChildSourceList's objects to iterate and connect.
this._diagramEngine.AddConnection(nodeRelation, item);
}
}
}
}
/// <summary>
/// Resolves the node based on the Attribute values specified dynamically.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="nodeClassInfo">The node class info.</param>
/// <returns></returns>
internal Node GenerateNode(object item, NodeClassInfo nodeClassInfo)
{
if (nodeClassInfo != null)
{
//Generate Node based on the NodeClassInfo and Append it to the Diagram Model
NodeTypeAttribute nodeTypeAttr = nodeClassInfo.GetNodeTypeAttribute();
/*if ( !nodeTypeAttr.IsGroupNode )
* {*/
object node = GenerateNode(nodeTypeAttr.NodeType, nodeTypeAttr.Dimensions);
foreach (NodePropInfo pInfo in nodeClassInfo.NodePropertyInfoCollection)
{
NodeAttributeAttribute nAttr = pInfo.GetCustomAttribute();
if (nAttr.VisibilityType == VisibleType.Label)
{
//Add labels to node type. Get the value from the IList item and then add a label.
string lblText = item.GetType().GetProperty(pInfo.PropertyName).GetValue(item, null).ToString();
if (lblText != "")
{
AddLabel(node, lblText);
}
}
}
/* }
* else
* {
* ConstructorInfo cInfo = nodeTypeAttr.NodeType.GetConstructor( Type.EmptyTypes );
* //Invoke the default constructor
* node = cInfo.Invoke( new object[0] );
* if ( nodeTypeAttr.NodeRectangleF.Length == 4 )
* {
* ( ( Group )node ).PinPoint = new PointF( nodeTypeAttr.NodeRectangleF[0], nodeTypeAttr.NodeRectangleF[1] );
* ( ( Group )node ).Size = new SizeF( nodeTypeAttr.NodeRectangleF[2], nodeTypeAttr.NodeRectangleF[3] );
* }
* else
* {
* ( ( Group )node ).PinPoint = new PointF( 0, 0 );
* ( ( Group )node ).Size = new SizeF( 100, 100 );
* }
*
* foreach ( NodePropInfo pInfo in nodeClassInfo.NodePropertyInfoCollection )
* {
* NodeAttributeAttribute nAttr = pInfo.GetCustomAttribute( );
* if ( nAttr.VisibilityType == VisibleType.Node )
* {
* //add node to the Group collection
* object childNode = GenerateNode( nAttr.NodeType, nAttr.NodeRectangleF );
* //add the node to the Group object
* ( ( Group )node ).AppendChild( ( Node )childNode );
* }
* }
* }*/
return((Node)node);
}
return(null);
}
